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Finding the Fourth Proportional to 894.60, 1,341.50 and 317.48

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Solution

The fourth proportional to 894.60, 1,341.50 and 317.48 is: 476.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.60 : 1,341.50 = 317.48 : x
  2. Step 2: Convert to fraction form
    894.60/1,341.50 = 317.48/x
  3. Step 3: Cross multiply
    894.60x = 1,341.50 × 317.48
  4. Step 4: Simplify right side
    894.60x = 425,891.13
  5. Step 5: Solve for x
    x = 425,891.13/894.60
  6. Step 6: Final answer
    x = 476.07

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.